Home / 722,832.75-997,531.11-400,512.69

Finding the Fourth Proportional to 722,832.75, 997,531.11 and 400,512.69

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Solution

The fourth proportional to 722,832.75, 997,531.11 and 400,512.69 is: 552,719.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,832.75 : 997,531.11 = 400,512.69 : x
  2. Step 2: Convert to fraction form
    722,832.75/997,531.11 = 400,512.69/x
  3. Step 3: Cross multiply
    722,832.75x = 997,531.11 × 400,512.69
  4. Step 4: Simplify right side
    722,832.75x = 399,523,868,224.79
  5. Step 5: Solve for x
    x = 399,523,868,224.79/722,832.75
  6. Step 6: Final answer
    x = 552,719.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.